I just wonder if someone could, or will make a working NDBs and ADF. It doesn't have even to work using realistic radio waves etc, it could only be a simple pop-up window with simple RMI-like indicator and a menu from which you select a "beacon" (it may be a special type of building which position is registered, and the pointer is pointing to it's geographical coordinates). Optionally, it would have a range of, +/- 200nm, and you would be able to name a beacon. Is it even possible to be done?
